Fatigue feels like you have an overwhelming urge to sleep, but you may not feel refreshed after you rest or sleep. Fatigue often occurs along with other symptoms, such as: Depression and lack of desire to do the activities you once enjoyed. Trouble concentrating or focusing.
“Fatigue throughout the day is created through a lack of sleep, and this increased sense of tiredness causes an imbalance of hormones in the body, which is what creates the feeling of sickness,” Shore says.
This is part of a process called the circadian rhythm. This works like a natural clock in our body. This clock also controls the production of melatonin, a hormone that helps tell your body when to sleep and when to wake up. When your body releases more melatonin, you feel more tired.
Most of the time fatigue can be traced to one or more lifestyle issues, such as poor sleep habits or lack of exercise. Fatigue can be caused by a medicine or linked to depression. Sometimes fatigue is a symptom of an illness that needs treatment.
Sleep Deprivation
Sleep deprivation can cause fatigue, daytime sleepiness, lack of concentration, dizziness, irritability, and depression. It also is linked to weight gain and may increase the risk of heart disease.
It is caused by factors that can include stress from significant life events, or changes to your sleep schedule. Or it could be secondary insomnia, which is linked to health conditions like mental health issues, other sleep disorders, illness, or pain — and it can be acute or chronic.
However, most people start experiencing a decline in their energy levels by the time they reach their mid-thirties. And this decline in energy levels can be attributed to various factors, including changes in metabolism, hormonal changes, and lifestyle factors such as diet, exercise, and stress.
If you have been feeling constantly tired for more than 4 weeks, it's a good idea to see your GP so they can confirm or rule out a medical condition that could be causing your tiredness.
Ratings of someone's fatigue were positively correlated with ratings of hanging eyelids, swollen eyes, red eyes, glazed eyes, dark circles under the eyes, wrinkles/fine lines, and corners of the mouth pointing downward (P < 0.01 for all mentioned factors), see Table 1.
Reasons for fatigue in females include high sleep debt, being out of sync with your circadian rhythm, your menstrual cycle and period, pregnancy, menopause, hormonal contraceptives, poor diet, lack of exercise, stress and anxiety, medication side effects, and medical conditions like thyroid issues or anemia.
Hypersomnia means excessive sleepiness. There are many different causes, the most common in our society being inadequate sleep. This may be due to shiftwork, family demands (such as a new baby), study or social life. Other causes include sleep disorders, medication, and medical and psychiatric illnesses.
If you suddenly feel weak, shaky, or lightheaded—or if you even faint—you could be experiencing hypoglycemia. A headache that comes on quickly, weakness or tremor in your arms or legs, and a slight trembling of your body are also signs that your blood sugar is too low.
Some of the main causes are: dehydration(not having enough fluids in your body) a drop in blood pressure when you stand up quickly. feelings of anxiety or panic.
Sleep deficiency is linked to many chronic health problems, including heart disease, kidney disease, high blood pressure, diabetes, stroke, obesity, and depression. Sleep deficiency is also linked to a higher chance of injury in adults, teens, and children.
Dizziness is a common symptom of vitamin D deficiency, along with fatigue and brain fog. If you are feeling dizzy all the time, it is worth checking your vitamin D levels. Insufficient vitamin D can cause dizziness because it plays a role in maintaining blood pressure and fluid balance.
Low blood sugar (hypoglycemia) can cause hormonal and chemical changes in your body that may make you feel shaky or dizzy in the morning. People with diabetes who take insulin or sulfonylurea drugs have a high risk of low blood sugar. But you don't have to have diabetes to have low blood sugar from time to time.
For people who are experiencing dizziness when they wake up, dysfunction in the circulatory system or peripheral vestibular system may be the cause. Some medications can also cause morning dizziness, as can alcohol and recreational drugs. Even dehydration or low blood sugar can make you feel dizzy.
Everyday fatigue that is not illness-related starts with a baseline of health. You may feel sleepy, you may in fact be sleep-deprived, or your body and mind may be worn out from long hours, exertion, or unrelenting stress — but you don't feel sick. Your muscles and joints don't ache like when you have the flu.
Reasons this might happen include drinking caffeine or alcohol late in the day, a poor sleep environment, a sleep disorder, or another health condition. When you can't get back to sleep quickly, you won't get enough quality sleep to keep you refreshed and healthy.
Drinking too much fluid before bedtime or untreated diabetes are two possible causes of nocturia, the medical term for waking up at night to urinate.